package demo;

public class KeyBoard implements IUSB{
    @Override
    public void openService() {
        System.out.println("正在连接键盘");
    }

    @Override
    public void closeService() {
        System.out.println("断开键盘连接");
    }

    public void input() {
        System.out.println("敲击键盘");
    }
}
